Comfort and Modern Luxury. Now Featuring a Brand New Pool and Hot Tub Area! Situated along the hillside of Sonoma Valley sits Olea Hotel. This elegant boutique hotel in Glen Ellen, California is an adult only retreat that attracts wine enthusiasts from all over the country. Surrounded by oak and olive trees, our Sonoma boutique hotel features a beautiful terrace with outdoor furnishings overlooking the valley. Olea Hotel offers the perfect getaway for anyone wishing to explore Sonoma wine country and all it has to offer.